Cross-sections of solids

Start lessonBegins with Cross sections solids of revolution · Slides

Teacher tools for this standard

Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework

Lesson Plan →Objectives, pacing and practice, built from this lesson's brief.
Guided Notes →One page your students fill in and keep.
Exit Ticket →Three items at the end of class. No student accounts.
Re-teach →After an exit ticket: who missed what, and what to do tomorrow.
Homework →Assign practice; it grades itself.

G 702. Compute the area of composite geometric figures when planning and/or visualization is required G 705. Solve multistep geometry problems that involve integrating concepts, planning, and/or visualization

G 702. Compute the area of composite geometric figures when planning and/or visualization is required
G 705. Solve multistep geometry problems that involve integrating concepts, planning, and/or visualization

What you'll learn

Define a cross-section as the 2D shape formed when a plane cuts through a 3D solid
Identify the cross-section produced by horizontal, vertical, and diagonal cuts through rectangular prisms, cylinders, cones, pyramids, and spheres
Recognize how changing the angle or position of the cutting plane changes the resulting cross-section
Identify which 3D solid results from rotating a given 2D shape around a specified axis
Solve ACT-style problems that ask for the shape of a cross-section or the solid generated by a rotation

Review first:

Volume of prisms, cylinders, pyramids, cones, spheres

Slides

Step through the lesson, or watch it as a narrated video

Cross sections solids of revolution

✓ Start here

Watch as video

Practice

Try it on your own

Exercise

Practice problems, checked as you go

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